n+7=4n+7

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Solution for n+7=4n+7 equation: 


n in (-oo:+oo)

n+7 = 4*n+7 // - 4*n+7

n-(4*n)-7+7 = 0

n-4*n-7+7 = 0

-3*n = 0 // : -3

n = 0

n = 0

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